@article{KUIPM_1990_a10,
     author = {S. I. Solov'ev},
     title = {Fast direct methods of solving finite-element grid schemes with bicubic elements for the {Poisson} equation},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {120--129},
     publisher = {mathdoc},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1990_a10/}
}